Addressing a press conference in Patna, Modi revealed that properties owned by Lalu Yadav's wife Rabri Devi was bought by people involved in sand mafia.

"People like Arun Yadav, an MLA of RJD, have been buying property which belongs to Rabri Devi. Arun Yadav's sons, Rajesh Kumar Ranjan and Deepu Kumar, along with his wife Kiran Devi have spent Rs. 2. 56 crore in black money to buy these flats," he said, further accusing Arun Yadav of forming a company to portray the money as white money.

In addition to it, he mentioned about the names of criminals with whom Lalu and his MLAs are allegedly involved with.

"The Bihar police caught a criminal, Ranjit Chaudhary, on Friday. He admitted to buying illegal arms from Arun Yadav," he said, further mentioning that the police have arrested Arun Yadav's father-in-law for possessing illegal arms.

He questioned the authorities in Bihar and demanded a probe as to how the sand mafias managed to buy 8 plots owned by Rabri Devi in a single day.

Modi reiterated that such evidences continue to show Lalu Yadav's link to illegal properties and urged him to come up with an answer.

These statements come after Sushil Kumar Modi on Tuesday pledged to 'expose' RJD chief Lalu Prasad Yadav's nexus with the sand and mining mafia in the next three days, saying he had ample evidence to call for yet another criminal probe against what he described as Bihar's most corrupt family.